From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH v2] drm/i915: Optimistically spin for the request completion Date: Thu, 12 Mar 2015 10:17:43 +0100 Message-ID: <20150312091743.GT3800@phenom.ffwll.local> References: <1426087759-28117-1-git-send-email-chris@chris-wilson.co.uk> <20150311211819.GA29199@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wi0-f173.google.com (mail-wi0-f173.google.com [209.85.212.173]) by gabe.freedesktop.org (Postfix) with ESMTP id 607456E3FE for ; Thu, 12 Mar 2015 02:16:04 -0700 (PDT) Received: by wiwl15 with SMTP id l15so18568307wiw.0 for ; Thu, 12 Mar 2015 02:16:03 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20150311211819.GA29199@nuc-i3427.alporthouse.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org, Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCBNYXIgMTEsIDIwMTUgYXQgMDk6MTg6MTlQTSArMDAwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IE9uIFdlZCwgTWFyIDExLCAyMDE1IGF0IDAzOjI5OjE5UE0gKzAwMDAsIENocmlzIFdp bHNvbiB3cm90ZToKPiA+ICsJd2hpbGUgKCFuZWVkX3Jlc2NoZWQoKSkgewo+ID4gKwkJaWYgKGk5 MTVfZ2VtX3JlcXVlc3RfY29tcGxldGVkKHJlcSwgdHJ1ZSkpIHsKPiA+ICsJCQlyZXQgPSAwOwo+ ID4gKwkJCWdvdG8gb3V0Owo+ID4gKwkJfQo+ID4gKwo+ID4gKwkJaWYgKHRpbWVvdXQgJiYgdGlt ZV9hZnRlcl9lcShqaWZmaWVzLCB0aW1lb3V0KSkKPiA+ICsJCQlicmVhazsKPiA+ICsKPiA+ICsJ CWNwdV9yZWxheF9sb3dsYXRlbmN5KCk7Cj4gPiArCX0KPiAKPiBIbW0uIFRoaXMgdW5mb3J0dW5h dGVseSBkb2Vzbid0IHF1aXRlIHdvcmsgdGhlIHNhbWUgYXMgdGhlIG9wdGltaXN0aWMKPiBtdXRl eCBzcGlubmVyLiBUaGUgZGlmZmVyZW5jZSBiZWluZyB0aGF0IHRoZSBzY2hlZHVsZXIga25vd3Mg dGhhdCB0d28KPiBwcm9jZXNzZXMgYXJlIGNvbnRlbmRpbmcgZm9yIHRoZSBtdXRleCwgYnV0IGl0 IGRvZXNuJ3Qga25vdyBhYm91dCB0aGUKPiBjb250ZW50aW9uIGJldHdlZW4gdGhlIHRocmVhZCBh bmQgdGhlIEdQVS4gVGhlIHJlc3VsdCBpcyB0aGF0IHVubGVzcwo+IHRoZXJlIGlzIG90aGVyIGFj dGl2aXR5IG9uIHRoZSBzeXN0ZW0gd2Ugc2ltcGx5IGRlZ3JhZGUgaW50byBhIGJ1c3ktc3Bpbgo+ IHVudGlsIHRoZSBHUFUgaXMgZmluaXNoZWQsIHJhdGhlciB0aGFuIHdoYXQgSSBpbnRlbmRlZCBh cyBzcGluIGZvciB0aGUKPiBuZXh0IH4xMG1zIGFuZCB0aGVuIGZhbGxiYWNrIHRvIHRoZSBpbnRl cnJ1cHQuCj4gCj4gQXJndWFibHkgYnVzeS1zcGlubmluZyBvbiBhbiBpZGxlIHN5c3RlbSBpc24n dCB0b3RhbGx5IGV2aWwsIGJ1dCBpdAo+IGNlcnRhaW5seSBpcyBsaWtlbHkgdG8gY29tZSBhdCBh IHBvd2VyIGNvc3QuIE9uIHRoZSBvdGhlciBoYW5kLCBzcGlubmluZwo+IGlzIHJlbGF0aXZlbHkg cmFyZSBvdXRzaWRlIG9mIGJlbmNobWFya3MuIFJhcmUgZW5vdWdoIHRvIGJlIHVzZWZ1bD8KCk1h eWJlIHRocm93IGluIGEgbGltaXQgb2YgYSBmZXcgdXNlY29uZHMgdW5kZXIgdGhlIGFzc3VtcHRp b24gdGhhdCBpdCdzIG9rCnRvIHNwaW4gZm9yIHJvdWdobHkgdGhlIGF2ZXJhZ2Ugc2xlZXArd2Fr ZXVwIGxhdGVuY3k/IEFuZCBvbmNlIHNwdW4gb3V0IGdvCnRvIHNsZWVwPwotRGFuaWVsCi0tIApE YW5pZWwgVmV0dGVyClNvZnR3YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3JhdGlvbgorNDEgKDAp IDc5IDM2NSA1NyA0OCAtIGh0dHA6Ly9ibG9nLmZmd2xsLmNoCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwt Z2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21h aWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==